Question

40. Which is the smallest three-digit triangular number divisible
by 8?
(1) 136
(2) 104
(3) 120
(4) 128​

Answer 1

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Which is the smallest three-digit triangular number divisible by 8?

(1) 136

(2) 104 ✔️✔️

(3) 120

(4) 128

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Answer 2

8×17=136

8×13=104

8×15=120

8×16=128

So 13 is smallest no.

So 104 is smallest